The Twilight star, 22, spoke to the Associated Press at the Toronto International Film Festival Saturday -- where she's currently promoting "On the Road" -- about having to walk red carpets and navigate press conferences with Pattinson by her side for The Twilight Saga's final installment, Breaking Dawn -- Part 2.

"We're going to be fine," she said of her now-estranged love of three years. "We're totally fine."

Her appearance at the "On the Road" premiere in Toronto Thursday night marked Stewart's first public appearance since news that she had cheated on Pattinson with her "Snow White and the Huntsman" director, Rupert Sanders, broke in late July.

Still, the exceptionally private star -- who has confessed to feeling awkward and out of place as it is during industry events -- says she wouldn't have missed the Toronto Film Fest for the world.

"We have been waiting for this thing to be unleashed for so long. It was sort of one of those situations where you just have to put yourself in your body and go appreciate the moment," the actress explained. At On the Road's world premiere in May at Cannes, "I would have been happy standing . . . with the entire theater booing it as long as I was in that row with my cast and with [director] Walter [Salles]. We would have been fine. I feel so strong with these people, and it's so appropriate. I belonged there." Still, she copped to feeling "nervous" before the screening. "To be honest, I was kind of just telling myself, like, don't black out . . . Be there, appreciate it."

The support she saw from fans on the red carpet helped her do just that.

"You expect a lot of people at a Twilight premiere, but showing up at an On the Road Toronto film festival screening and seeing that amount of people is absolutely, disarmingly amazing," Stewart said. "It felt pretty cool."